Home / 40,632.20-60,948.30-20,949.20

Finding the Fourth Proportional to 40,632.20, 60,948.30 and 20,949.20

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Solution

The fourth proportional to 40,632.20, 60,948.30 and 20,949.20 is: 31,423.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,632.20 : 60,948.30 = 20,949.20 : x
  2. Step 2: Convert to fraction form
    40,632.20/60,948.30 = 20,949.20/x
  3. Step 3: Cross multiply
    40,632.20x = 60,948.30 × 20,949.20
  4. Step 4: Simplify right side
    40,632.20x = 1,276,818,126.36
  5. Step 5: Solve for x
    x = 1,276,818,126.36/40,632.20
  6. Step 6: Final answer
    x = 31,423.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.